Граф коммитов

9 Коммитов

Автор SHA1 Сообщение Дата
Mauro Carvalho Chehab bddc418787 [media] au0828: use standard demod pads struct
As we want au0828 to use the core function to create the MC
graphs, use enum demod_pad_index instead of
enum au8522_media_pads.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 06:18:17 -03:00
Shuah Khan 4c4ada7306 [media] media: Move au8522_media_pads enum to au8522.h from au8522_priv.h
Move the au8522_media_pads enum to au8522.h from au8522_priv.h to export
them. This will allow au0828-core to use these defines instead of
hard-coding them them.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-27 08:33:30 -03:00
Rafael Lourenço de Lima Chehab bed6919665 [media] au0828: Add support for media controller
Add support for analog and dvb tv using media controller.

Signed-off-by: Rafael Lourenço de Lima Chehab <chehabrafael@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:18:39 -02:00
Mauro Carvalho Chehab aa37763fa4 [media] au8522: Avoid memory leak for device config data
As reported by kmemleak:

	unreferenced object 0xffff880321e1da40 (size 32):
	  comm "modprobe", pid 3309, jiffies 4295019569 (age 2359.636s)
	  hex dump (first 32 bytes):
	    47 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  G...............
	    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
	  backtrace:
	    [<ffffffff82278c8e>] kmemleak_alloc+0x4e/0xb0
	    [<ffffffff8153c08c>] kmem_cache_alloc_trace+0x1ec/0x280
	    [<ffffffffa13a896a>] au8522_probe+0x19a/0xa30 [au8522_decoder]
	    [<ffffffff81de0032>] i2c_device_probe+0x2b2/0x490
	    [<ffffffff81ca7004>] driver_probe_device+0x454/0xd90
	    [<ffffffff81ca7c1b>] __device_attach_driver+0x17b/0x230
	    [<ffffffff81ca15da>] bus_for_each_drv+0x11a/0x1b0
	    [<ffffffff81ca6a4d>] __device_attach+0x1cd/0x2c0
	    [<ffffffff81ca7d43>] device_initial_probe+0x13/0x20
	    [<ffffffff81ca451f>] bus_probe_device+0x1af/0x250
	    [<ffffffff81c9e0f3>] device_add+0x943/0x13b0
	    [<ffffffff81c9eb7a>] device_register+0x1a/0x20
	    [<ffffffff81de8626>] i2c_new_device+0x5d6/0x8f0
	    [<ffffffffa0d88ea4>] v4l2_i2c_new_subdev_board+0x1e4/0x250 [v4l2_common]
	    [<ffffffffa0d88fe7>] v4l2_i2c_new_subdev+0xd7/0x110 [v4l2_common]
	    [<ffffffffa13b2f76>] au0828_card_analog_fe_setup+0x2e6/0x3f0 [au0828]

Checking where the error happens:
	(gdb) list *au8522_probe+0x19a
	0x99a is in au8522_probe (drivers/media/dvb-frontends/au8522_decoder.c:761).
	756			printk(KERN_INFO "au8522_decoder attach existing instance.\n");
	757			break;
	758		}
	759
	760		demod_config = kzalloc(sizeof(struct au8522_config), GFP_KERNEL);
	761		if (demod_config == NULL) {
	762			if (instance == 1)
	763				kfree(state);
	764			return -ENOMEM;
	765		}

Shows that the error path is not being handled properly.

The are actually several issues here:

1) config free should have been calling hybrid_tuner_release_state()
function, by calling au8522_release_state();

2) config is only allocated at the digital part. On the analog one,
it is received from the caller.

A complex logic could be added to address it, however, it is simpler
to just embeed config inside the state.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-21 17:39:32 -02:00
Mauro Carvalho Chehab 0df289a209 [media] dvb: Get rid of typedev usage for enums
The DVB API was originally defined using typedefs. This is against
Kernel CodingStyle, and there's no good usage here. While we can't
remove its usage on userspace, we can avoid its usage in Kernelspace.

So, let's do it.

This patch was generated by this shell script:

	for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done

While here, make CodingStyle fixes on the affected lines.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> # for drivers/media/firewire/*
2015-06-09 17:47:35 -03:00
Mauro Carvalho Chehab f2fd7ce6f2 [media] au0828/au8522: Add PAL-M support
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-06-19 13:31:37 -03:00
Mauro Carvalho Chehab 38fe3510fa [media] au8522: be sure that the setup will happen at streamon time
The same demod is used on both analog and digital mode. We should
not let the commands for analog mode to happen while the device
is in digital mode. So, monitor it via streamon.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-06-19 13:25:25 -03:00
Hans Verkuil 5a4bdb4b34 [media] au8522_decoder: convert to the control framework
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-25 15:09:59 -03:00
Mauro Carvalho Chehab 9a0bf528b4 [media] move the dvb/frontends to drivers/media/dvb-frontends
Raise the DVB frontends one level up, as the intention is to remove
the drivers/media/dvb directory.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-13 23:13:41 -03:00